Keeping your wick trimmed is essential to ensure your candle has the most effective, even and long-lasting burn life. Before lighting always trim your wick (this applies to both wood and cotton wick 5-10mm to help trim off the effects of mushrooming and excess carbon and to help prevent soot from forming on the glass. The metal trimmer measures 18cm in full length and features a 13cm long handle allowing you to easily reach into candle containers to trim the wick. It will also help catch the trimmings which reduces the chance of debris falling on the candle wax.